Earlier this month, Delta unveiled its first refurbished Boeing 777-200 featuring the carrier’s new business and premium economy classes. The airline operates a fleet of 18 Boeing 777-200s, with ten Long Range (LR) variants and eight Extended Range (ER) variants. With an average age of 16.7 years, Delta is also the only airline of the U.S. three to not fly the 777-300ER, opting for the A350-900 instead. With the refurbishment of the first 777, the business class cabin saw a…